Explosive-engine.



G.A.1 `AB,KEB.

` BxPLosIvE ENGINE.

APP-LIOATION FILED SEPT. 7, 1909.

" Patented Aug. 9, 1910.

SBHEBTS-SHEET 1.

ein? Q. @/@MW G. A. PARKER. EXPLOSIVB ENGINE. -APPLIIOATIOHl FILED SEPT.7, 1909.

Patented Aug.9,191o.

Wi 1m Moab awning `Gr. A. PARKER. BXPLOSIVB ENGINE. 4APPLIUAQION ruimSEPT. 7, 1999.

Patented Aug.9,1910.-

3 SHEETS-SHEET 3.

Miren STATES PATENT' oni-non i anonima. ritenne, on Horn VALLEY, encontendini), AssmNoRoroNn-HALF `'ro Hennen ennemies simmons, on HornVALLEY, iai-ionen ISLAND.

' nXrLosivE-Eivemn.

To cllwhowt it may concern: l A. `havingslidingiinovementinsaidslotsysaid e Be 1t known that l, GEORGE A. PARKER, apistons being located in alineinent with the citizen of the UnitedStates, resident of grooves c', c2, and havingcontactf at oneendlllopelfalley7 in the county of l/Vashington thereof with thccylinderWall fof theoX- and' State of Rhode Island, have inade` a pansionchamber opposite such grooves.y and 60 certain new and useful Inventionin"` En at their opposite ends lying just-witliin-`the Vplosive-Engines; .and I declare the followslots. As :the shaft Znfandits? sliding` pising to be a; tall, clear, and exact description tonsrotate, .such pistons at the `ends thereof l of. the lsanne, such aswill enable others which are in contact with said 4cvlinderWall eskilled 1n the art to which it appertains to are adapted to lhavecontact .WithI the cams 65 make and usethe invention, reference beingC3, e4, whereby they are forced -'.th`10ugh.1,he had to the accompanyingdrawings and t0 slots of the shaft to protrnde'upon the opletters or'tignresof reference marked there- -poste side thereof into* contactwith the` on, 'which forni a part ofthis specification. cylinder wall.The ends of` the pistonsy are 1,5 vFiigaire lis a side view of myengine. Fig. l rounded as shown at 3; for more readyen- 70 :lis a. planview of the saine. Fig. 3ds a gagenient with the cams `referred to.` uSBCOH 011 the 'll-UQ le-3, Fig. 2. Fig. lis a At thevinner terminationsof the cam por- Slf'tlpn 0n lh@ line m41 Fig 3- Fig; 5 is@ tions-c3, c4,are located valves e, e@ designed M311 from VW the buhng# Flg G 1S toadmit `the gaseous explosive mixture to 2e an end View of thesanie. Fig.T is a detail the expansionChamber@` said valves' being 75 Side' View 0fil Vall@ Camier- .F' 7a il `opened and closed periodicallyas hereindgmilend 'iVeWOf' the 55115195 lg- 8 1S d after described. Each fvalve,Which'is` of detail perspective View` ot the 'slide plate. taperedfel-m, has en elongated Stem-faillit- 9 ai Slllllllll.' Vl" Olii theCrank in one end portion of a Carl-ier f5 Said 25 level* i i Yearnierhaving at the opposite' end thereofA a 80 The invention relatesto explosive engines roue); f2, The tapered" Valve` nel-many lies and'it consists in the novel construction: and against the tapered ValeeSeat f3, of e pel-fecombinations of parts hereinafter set rated plug fx,partially closing the valvedw forth" l i end portion of the carrier f,andhavng a 3o In the accompanying drawings, illustrat- @enti-al aperturef5, t0 receive the yal-ve etenL 85 ing the invention, ythe letter' (t,designates `A coiled spring g, `surrounds each?v valve the casing,v`provided with a cylindrical bore stein, bearing at one endl against the`*plug jt.

o", closed at t-heends hythe heads o', 1n and at its opposite endaga-inst a `cross bar which are provided journal' bearings for the g',threaded upon' the outer end portion of central rotaryshatt 7J,extending longitudithe valve stern, said crossbar efitending at 90 nallyof said bore. c, is a hollovv cylindrical each side and having"movement: Wltttm stationary bushing oit the saine length `as slots it,7i, of the .carrier Eaehyelve Cassaid `bore in` which -it closelt7 tits,the shaft AingL or Carrier f, projects' through the gasA Which SOf the'Same diameter' RS the inchamber z', and into the` expans1on 'cha1nbers.

to ternal diameter of the bushing fitting closely dioi-niedhy thegroovesfof thebnshlng afore- 95 and having rotary inoveinent therein.The said, suitable stalling boxespbing orovided bushing is provided withtwog'rooveseach at ',Whereitent-ers the gas cham er, and groove beingoftheshape of theJ major porcoiled springs j? surrounding -Saldcari'ierstion of' an annnlus7 in connection with the and having bearln s atoneendegainstsnch 45 cylinder Wallsof'the boire olzopposite the stallingA'boxes an at their'opposltelends 100 sa1ne, as shown; sach .grooves:tornnng ,the against shoulders Vy', the-carriei's-andfot* expansionchambers torthe explosiveunlx,l nig-to Alepthe' Vcarriers *and'val-Ves"With-W, ture and in which Work thepistons, tolle drawn.' Iii order'tothrust theval've carriers descriloeda flhegio'oves c c2, are'cut en.-forward Within the ezipanslon chainbers or 105 50 4tireljy throughtheivalls lof ithe'hnshingr 1n- *grooves @Q 29a transverselyslidingjplatemlc, tegral cani portions c3., et, `in alincn'ient not-h isprovlded .foreach such'carrie@` said-plate said Vgrooves? connecting'the ungroovedfpop "having-jat eachI sidefallnng le,providedwithV tionsrof thebnshing.r The shatt Z), `has' inclined inner surface 7a2, -Uoninwardtransverse slots o, of, at right anglesto each movement of theplate 7:, the inclined or 110 L59 other, bai' or plate pistons d, de',litting and cam surface 7c?, oi'` the outerlug lc thereof l35 point inits movement 'W will act upon the. roller f2, to thrust the rotary shafthaving diametric slots of the valve carrier forward as aforesaid. Thismovement of each'plate Visaccomplished by means of a. bell crank leverZ, one arni of which isipivoted to the plateat l', and the other arm-ofwhich is pivoted to a slide m, at Z2, said slide having oppositeextensions m', having slide bearings at m2, upon supports n, extendingupward from the base of the machine. -Each slide m, has an eccentric anditman connection o, o', with the drivin s aft b, for actuation of thebell crank ever and slide'-` late k.

wheel p, is alsoprovide at each end of said ..15 shaft. When the slideplate 7c, is moved outward through the action of its bell crank lever,the valve caiier is retracted' through the action of its spring j,when'the roller thereof will lie between the lu s k. The valve e, or e',is at the same time opened through pressure of the cross bar g, againstthe outer wall of the gas chamber, admitting gas to the expansionchamber c', or c2, when upon the thrusting forward. of the valvecarrier, which follows rapidly, the -valve will be closed under theinfiuence of its spring g, and the gas compressed in the expansionchamber, lnasmuch as the movement of the valve carrier is uicker thanthat of the sliding piston. At t is point-.the as 1s exploded through anignter g, which c rives the sliding 'p1ston`forward, at the same timeexerting power upon the shaft l), toturn the same. .When each vslidingpiston reaches the n its retraction or reversal is be un t gh the actionof the cam c3, or 0*, t e roducts of the combustion or explosion o thegas are exhausted through port r. Inasmuch as the sliding 40 pistons arereversed or thrust outward alternately into contact at one end thereofwith the wall of the cylinder, at each quarter turn of the shaft b, thesame result is obtained from one sliding piston as from two directacting pistons, the two pistonsbeing thus equal to four direct actingpistons. As many of these sliding istons maybe emloyed asV required fortepurpose in view, hy locatinthem at different points along the shaftgrooves in the bushing being providedto, correspond, and the othernecesf sary parts being duplicated. l The eccentrics o, o', upon theshaft b, are set to throw the pitman connections at each v quarter turnof said shaft whereby the valve' carriers and valves are actuated at thesame time, thus doing away with unnecessary duplication of parts.

Having described -the invention, what I 60 claim and desire to secure byLetters Patent is; A. y l.k In a rotary explosive engine, a casinghaving a cylinderical opening provided with grooves therein separatedfrom each other and forming expansion chambers, a central Av balance`same dimensions throughout extending entirely through the saine inregister with said chambers and' having an angular relation to eachother, and sliding tlianietric bar pistons ofthe same dimensionsthroughout Working in and extending entirely through said slots, eachbar piston having endwise movement from opposite ends of its slot atdifferent times against the peripheral wall of its expansion chamber,and cam means operating against the ends of the istons for causing thesame to be successive y withdrawn within their slots and projectedtherefrom.

2. In a rotary explfve engine, a casinot 8o having a cylindrical openingprovided wit i grooves therein separated from each other and formingexpansion chambers, a central rotary shaft havingdiametric slotsextending entirely through the same in register with said chambers andliavinvr an angular relation to each other, sliding d-*iametric pistonsworking in said slots, each piston having endwise movement from oppositeends of its slot at different times against the peripheral walllof itsexpansion chamber, a gas chamber atone side of and separated from saidexpansion chambers', a passage connecting each expansion 'chamber withsaid gas chamber, a hollow valve carrier having movement in said passageand communication at opposite ends thereof with the gas and expansionchambers, and a valve normally closing the communication of said carrierwith the expansion chamber and provided with a retracting sprin ,meansfor retracting the valve carrier an for thrusting the same forward atpredetermined times, and means for opening the valve upon retraction ofthelvalve carriei'. lor

3. .In a rotary explosive engine, a casing having a cylindrical. openingprovided with a bushing having separated grooves therein formingexpansion chambers, un grooved portions andnam portions connecting theungrooved portions of the bushing, a central rotary shaft havingdianietric slots extending entirely through the same in register withsaid chambers and havin an Aangular relation to, each other, and shdingpistons working in said slots, each piston having endwise movement fromopposite ends of its slot at different times a ainst the peripheral wallof its expansion c amber, and having operative engagement at eitli'erend thereof rg0 with said cam portions. l

4. In a rotary explosive engine, a casing having a cylindrical openingprovided with grooves therein' separated from each other and formingexpansion chambers, a central Arotary shaft having diametric slotsextending'entirely through the same .in register .with said chambers andhaving an angular relation to eachother, s liding pistons working insaid slots, each pistonhaving endwise 4Jammie l 3 movementfrom oppositeends of its slot at'l reoiprocatingmeans for thrusting the valvediffer-'entv times against'the peripheral Wall carriers forward atpredetermined times, 4a of its expansion chamber, a gas chamber at,letracting spring forthe-valve carrier, and 1'5 ollle side of andseparated from said expanmeans for opening the valve upon retractioni115 ionich'ambes, a passage connecting each exof the valve carrier.

pans'o'n chamber with saidfgas chamber, a 'In testimony whereof I aix mysignature, hollow valve carrler havin@ movement m 1n )resence of twoWitnesses. said passage and communication at its ends with `the gas andexpansion chambers, a valve l (IILORGE Ab PARKERT 350 normallyclosing'the communication of said; vWitnesses: v

- i carrier with the expansion chamber andpfho- Anci-n). MACKENZIE,

vided Witha lreti-acting spring, transverse HELLEN G. SIMMoNs.

